:root {
  color-scheme: dark;
  --bg: #0d1117;
  --card: #161b22;
  --head-bg: #1c2128;
  --topbar: #010409;
  --border: #30363d;
  --text: #e6edf3;
  --muted: #8d96a0;
  --accent: #f0507e;        /* rouge "école" */
  --accent-soft: #3a1622;
  --quote-text: #f4a9c0;
  --ok: #3fb950;
  --ok-soft: #12261a;
  --ko: #f85149;
  --ko-soft: #2d1215;
  --ko-border: #6e2a2a;
  --warn: #d29922;
  --warn-soft: #2b2111;
  --warn-border: #6b4d12;
  --info: #58a6ff;
  --info-soft: #0f2440;
  --info-border: #1f4b80;
  --adv: #bc8cff;
  --adv-soft: #2a1b45;
  --mid: #d29922;
  --pending: #484f58;
  --code-bg: #1f242c;
  --trace-bg: #010409;
  --user-msg: #13304f;
  --shadow: rgba(0, 0, 0, .45);
  --mono: ui-monospace, "JetBrains Mono", "Cascadia Code", Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body { background: var(--bg); color: var(--text); font: 15px/1.6 var(--sans); display: flex; flex-direction: column; }
a { color: inherit; }
code { font: 13px var(--mono); background: var(--code-bg); border: 1px solid var(--border); padding: 0 4px; border-radius: 4px; }
pre { background: var(--code-bg); border: 1px solid var(--border); border-radius: 6px; padding: 12px 14px; overflow-x: auto; font: 13px/1.5 var(--mono); }
pre code { background: none; border: 0; padding: 0; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 5px; }
::-webkit-scrollbar-track { background: transparent; }

/* ---------------------------------------------------------------- topbar */
.topbar { display: flex; align-items: center; gap: 18px; padding: 0 24px; height: 54px; background: var(--topbar); color: var(--text); border-bottom: 1px solid var(--border); flex-shrink: 0; }
.brand { font: 700 18px var(--mono); text-decoration: none; }
.brand span { color: var(--accent); }
.crumbs { font-size: 14px; color: var(--muted); }
.crumbs b { color: var(--text); }
.crumbs a { text-decoration: none; }
.crumbs a:hover { text-decoration: underline; }
.spacer { flex: 1; }
.pill { font-size: 12px; padding: 2px 10px; border-radius: 999px; border: 1px solid var(--border); color: var(--muted); }
.pill.on { border-color: var(--ok); color: var(--ok); }

.btn { background: var(--accent); color: #fff; border: 0; border-radius: 6px; padding: 8px 16px; font: 600 14px var(--sans); cursor: pointer; }
.btn:hover { filter: brightness(1.1); }
.btn:disabled { opacity: .55; cursor: progress; }
.btn.ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn.ghost:hover { background: var(--code-bg); filter: none; }
.btn.small { padding: 3px 10px; font-size: 12px; }

/* ---------------------------------------------------------------- layout */
.shell { flex: 1; display: flex; min-height: 0; }
.main { flex: 1; overflow-y: auto; padding: 28px 32px 80px; }
.container { max-width: 940px; margin: 0 auto; }

/* ---------------------------------------------------------------- dashboard */
.dash-intro { margin-bottom: 28px; }
.dash-intro h1 { margin: 0 0 4px; font-size: 26px; }
.dash-intro p { margin: 0; color: var(--muted); }
.track { margin-bottom: 30px; }
.track h2 { font-size: 13px; text-transform: uppercase; letter-spacing: 1px; color: var(--muted); margin: 0 0 2px; }
.track > p { margin: 0 0 12px; color: var(--muted); font-size: 14px; }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 14px; }
.pcard { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 16px 18px; text-decoration: none; display: flex; flex-direction: column; gap: 6px; transition: box-shadow .15s, transform .15s, border-color .15s; }
.pcard:hover { box-shadow: 0 4px 14px var(--shadow); transform: translateY(-1px); border-color: var(--muted); }
.pcard.locked { opacity: .5; }
.pcard .pid { font: 12px var(--mono); color: var(--muted); }
.pcard .ptitle { font-weight: 650; font-size: 16px; }
.pcard .psum { font-size: 13px; color: var(--muted); flex: 1; }
.pcard .pfoot { display: flex; align-items: center; justify-content: space-between; font-size: 13px; color: var(--muted); }
.bar { height: 6px; background: var(--border); border-radius: 3px; overflow: hidden; }
.bar > i { display: block; height: 100%; background: var(--ko); }
.bar.ok > i { background: var(--ok); }
.bar.mid > i { background: var(--mid); }

.badge { display: inline-block; font-size: 11px; font-weight: 700; padding: 1px 8px; border-radius: 999px; text-transform: uppercase; letter-spacing: .4px; }
.badge.ok { background: var(--ok-soft); color: var(--ok); }
.badge.ko { background: var(--ko-soft); color: var(--ko); }
.badge.todo { background: var(--accent-soft); color: var(--accent); }
.badge.lock { background: var(--code-bg); color: var(--muted); }
.badge.mand { background: var(--info-soft); color: var(--info); }
.badge.adv { background: var(--adv-soft); color: var(--adv); }
.badge.skip { background: var(--info-soft); color: var(--info); }

/* ---------------------------------------------------------------- page projet */
.phead { display: flex; gap: 24px; align-items: center; margin-bottom: 18px; }
.phead .ptext { flex: 1; }
.phead h1 { margin: 2px 0 4px; font-size: 26px; }
.phead .psum { color: var(--muted); margin: 0; }
.score { width: 96px; height: 96px; border-radius: 50%; display: grid; place-items: center; flex-shrink: 0;
         background: conic-gradient(var(--c, var(--ko)) calc(var(--p) * 1%), var(--border) 0); }
.score > div { width: 78px; height: 78px; border-radius: 50%; background: var(--bg); display: grid; place-items: center; text-align: center; line-height: 1.1; }
.score b { font-size: 22px; }
.score small { font-size: 11px; color: var(--muted); }

.panel { background: var(--card); border: 1px solid var(--border); border-radius: 10px; margin-bottom: 16px; }
.panel-body { padding: 14px 18px; }
.howto { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.howto .txt { flex: 1; font-size: 14px; }
.howto .txt div { margin: 2px 0; }
.alert { padding: 10px 14px; border-radius: 8px; font-size: 14px; margin-bottom: 16px; }
.alert.warn { background: var(--warn-soft); color: var(--warn); border: 1px solid var(--warn-border); }
.alert.err { background: var(--ko-soft); color: var(--ko); border: 1px solid var(--ko-border); }
.alert.info { background: var(--info-soft); color: var(--info); border: 1px solid var(--info-border); }

details.concepts > summary { cursor: pointer; padding: 12px 18px; font-weight: 600; list-style: none; display: flex; align-items: center; gap: 8px; }
details.concepts > summary::before { content: "▸"; color: var(--muted); transition: transform .15s; }
details.concepts[open] > summary::before { transform: rotate(90deg); }
details.concepts .md { padding: 0 22px 16px; border-top: 1px solid var(--border); }

.md h1 { display: none; }
.md h2 { font-size: 17px; margin: 22px 0 8px; }
.md h3 { font-size: 15px; margin: 18px 0 6px; }
.md table { border-collapse: collapse; margin: 10px 0; font-size: 14px; }
.md th, .md td { border: 1px solid var(--border); padding: 5px 10px; text-align: left; vertical-align: top; }
.md th { background: var(--head-bg); }
.md blockquote { margin: 12px 0; padding: 8px 14px; border-left: 3px solid var(--accent); background: var(--accent-soft); color: var(--quote-text); border-radius: 0 6px 6px 0; }
.md blockquote p { margin: 0; }
.md a { color: var(--info); }

h2.section { font-size: 18px; margin: 28px 0 12px; }

.task { background: var(--card); border: 1px solid var(--border); border-radius: 10px; margin-bottom: 14px; overflow: hidden; }
.task.passed { border-left: 4px solid var(--ok); }
.task.failed { border-left: 4px solid var(--ko); }
.task-head { display: flex; align-items: center; gap: 10px; padding: 12px 18px; border-bottom: 1px solid var(--border); background: var(--head-bg); }
.task-head h3 { margin: 0; font-size: 16px; flex: 1; }
.task-files { padding: 8px 18px 0; font-size: 13px; color: var(--muted); }
.task .md { padding: 4px 18px 6px; }
.checks { display: flex; flex-wrap: wrap; gap: 6px; padding: 10px 18px 14px; border-top: 1px dashed var(--border); }
.task-foot { padding: 10px 18px 14px; border-top: 1px dashed var(--border); font-size: 13px; color: var(--muted); display: flex; flex-direction: column; gap: 4px; }
.task-foot .label { font-size: 12px; text-transform: uppercase; letter-spacing: .5px; }
.task-foot code { color: var(--text); }
.checks .label { width: 100%; font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .5px; }
.chk { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; padding: 3px 10px 3px 6px; border-radius: 6px; background: var(--code-bg); border: 1px solid var(--border); }
.chk i { width: 14px; height: 14px; border-radius: 3px; background: var(--pending); flex-shrink: 0; }
.chk.ok i { background: var(--ok); } .chk.ko i { background: var(--ko); } .chk.skip i { background: var(--mid); }
.chk.ko { border-color: var(--ko-border); background: var(--ko-soft); }
.chk-detail { width: 100%; font-size: 13px; color: var(--ko); padding-left: 4px; }
.chk-detail.skip { color: var(--warn); }
.chk.blocked { border-style: dashed; } .chk.blocked i { background: transparent; border: 1px dashed var(--muted); }
.chk-detail.blocked { color: var(--muted); }
.task.blocked { border-style: dashed; }
.task-deps { padding: 10px 18px 0; font-size: 13px; color: var(--muted); }

.report-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.report-grid .panel { margin: 0; }
.panel h3 { margin: 0 0 8px; font-size: 15px; }
.style-list { list-style: none; padding: 0; margin: 0; font-size: 13px; max-height: 220px; overflow: auto; }
.style-list li { padding: 3px 0; border-bottom: 1px solid var(--border); }
.style-list .rule { font: 12px var(--mono); font-weight: 700; margin-right: 6px; }
.style-list .major .rule { color: var(--ko); } .style-list .minor .rule { color: var(--warn); }
.runs { list-style: none; padding: 0; margin: 0; font-size: 13px; max-height: 220px; overflow: auto; }
.runs li { display: flex; gap: 8px; align-items: center; padding: 4px 6px; border-radius: 6px; cursor: pointer; }
.runs li:hover, .runs li.sel { background: var(--code-bg); }
.runs .n { font: 12px var(--mono); color: var(--muted); width: 34px; }
.runs .msg { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.runs .pct { font-weight: 700; }
details.trace summary { cursor: pointer; padding: 10px 18px; font-size: 14px; color: var(--muted); }
details.trace pre { margin: 0 18px 16px; max-height: 420px; overflow: auto; white-space: pre-wrap; background: var(--trace-bg); color: var(--text); border: 1px solid var(--border); }

/* ---------------------------------------------------------------- tuteur */
.tutor { width: 420px; border-left: 1px solid var(--border); background: var(--card); display: flex; flex-direction: column; min-height: 0; }
.tutor[hidden] { display: none; }
.tutor-head { display: flex; align-items: center; justify-content: space-between; padding: 12px 16px; border-bottom: 1px solid var(--border); }
.tutor-title { font-weight: 700; }
.tutor-level { font-size: 12px; color: var(--muted); }
.tutor-actions { display: flex; gap: 6px; }
.tutor-rules { font-size: 12px; color: var(--muted); padding: 8px 16px; background: var(--head-bg); border-bottom: 1px solid var(--border); }
.tutor-log { flex: 1; overflow-y: auto; padding: 14px 16px; display: flex; flex-direction: column; gap: 12px; }
.msg { padding: 9px 12px; border-radius: 10px; font-size: 14px; overflow-wrap: anywhere; }
.msg.user { background: var(--user-msg); align-self: flex-end; max-width: 88%; }
.msg.assistant { background: var(--code-bg); border: 1px solid var(--border); }
.msg.error { background: var(--ko-soft); color: var(--ko); border-color: var(--ko-border); }
.msg p { margin: 0 0 8px; } .msg p:last-child { margin-bottom: 0; }
.msg .lvl { display: block; font-size: 11px; color: var(--muted); margin-bottom: 4px; }
.tutor-form { padding: 10px 16px 16px; border-top: 1px solid var(--border); display: flex; flex-direction: column; gap: 8px; }
.tutor-form textarea { width: 100%; resize: vertical; background: var(--bg); color: var(--text); border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; font: 14px var(--sans); }
.tutor-form textarea:focus { outline: none; border-color: var(--info); }
.tutor-form .btn { align-self: flex-end; }
.notice { color: var(--muted); font-size: 13px; padding: 10px 12px; border: 1px dashed var(--border); border-radius: 8px; }

@media (max-width: 1100px) { .tutor { position: fixed; right: 0; top: 54px; bottom: 0; box-shadow: -6px 0 20px var(--shadow); } .report-grid { grid-template-columns: 1fr; } }

/* ---- hub multi-utilisateur : compte, connexion, profil, administration ---- */
.userbox { display: flex; align-items: center; gap: 8px; font-size: 13px; }
.userbox img { width: 24px; height: 24px; border-radius: 50%; }
.userbox a { color: var(--text); text-decoration: none; }
.login { max-width: 520px; margin: 12vh auto 0; text-align: center; }
.login h1 { font-size: 40px; margin-bottom: 8px; }
.login p { color: var(--muted); }
.login .btn { display: inline-block; margin-top: 18px; text-decoration: none; padding: 12px 22px; }
.container.narrow { max-width: 720px; }
.muted { color: var(--muted); font-size: 13px; }
ul.plain { list-style: none; padding: 0; margin: 6px 0; }
.row { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 16px; margin: 8px 0; font-size: 13px; }
.row .spacer, .user-head .spacer { flex: 1; }
.limits { display: flex; flex-wrap: wrap; gap: 10px 16px; align-items: flex-end; margin: 8px 0; }
.limits label { display: flex; flex-direction: column; font-size: 12px; color: var(--muted); gap: 3px; }
input[type="number"], input[type="password"], input:not([type]) { background: var(--code-bg); color: var(--text); border: 1px solid var(--border); border-radius: 6px; padding: 5px 8px; font: 13px var(--sans); }
.limits input { width: 150px; }
.user-card { margin-bottom: 12px; }
.user-head { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.user-head img { width: 26px; height: 26px; border-radius: 50%; }
.usage { font-size: 13px; margin: 8px 0; color: var(--muted); }
.usage b { color: var(--text); }
.tbl { width: 100%; border-collapse: collapse; font-size: 12px; margin-top: 8px; }
.tbl th, .tbl td { text-align: left; padding: 4px 8px; border-bottom: 1px solid var(--border); }
.task-head .btn-task { margin-left: auto; }
.alert.ok { background: var(--ok-soft); color: var(--ok); border: 1px solid var(--ok); }

/* ---------------------------------------------------------------- panel admin */
.announce { padding: 8px 24px; font-size: 14px; border-bottom: 1px solid var(--border); }
.announce.info { background: var(--info-soft); color: var(--info); }
.announce.warn { background: var(--warn-soft); color: var(--warn); }
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin: 8px 0 18px; }
.tabs a { padding: 8px 14px; text-decoration: none; color: var(--muted); border-bottom: 2px solid transparent; font-size: 14px; }
.tabs a.sel { color: var(--text); border-bottom-color: var(--accent); }
.tabs a:hover { color: var(--text); }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 12px; margin-bottom: 16px; }
.stat { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px; display: flex; flex-direction: column; }
.stat b { font-size: 26px; line-height: 1.2; }
.stat span { font-size: 13px; }
.stat small { font-size: 12px; color: var(--muted); }
.stat.bad b { color: var(--ko); }
.bars { display: flex; align-items: flex-end; gap: 4px; height: 140px; padding-top: 6px; }
.bcol { flex: 1; height: 100%; display: flex; flex-direction: column-reverse; align-items: stretch; position: relative; padding-bottom: 16px; }
.bcol i { display: block; min-height: 0; }
.bcol i.full, .lg.full { background: var(--accent); }
.bcol i.task, .lg.task { background: var(--info); }
.bcol span { position: absolute; bottom: 0; left: 0; right: 0; text-align: center; font-size: 10px; color: var(--muted); }
.lg { display: inline-block; width: 9px; height: 9px; border-radius: 2px; margin: 0 4px 0 8px; }
.tbl.users td { vertical-align: middle; }
.tbl img.av { width: 22px; height: 22px; border-radius: 50%; display: block; }
.tbl tr[hidden] { display: none; }
.user-head.big { margin-bottom: 16px; }
.user-head.big img { width: 48px; height: 48px; }
.user-head.big h2 { margin: 0; font-size: 20px; }
.nowrap { white-space: nowrap; }
.ok-txt { color: var(--ok); }
.ko-txt { color: var(--ko); }
.btn.danger { background: transparent; color: var(--ko); border: 1px solid var(--ko-border); }
.btn.danger:hover { background: var(--ko-soft); filter: none; }
textarea, input[type=number], input:not([type]), select { background: var(--code-bg); color: var(--text); border: 1px solid var(--border); border-radius: 6px; padding: 5px 8px; font: 13px var(--sans); }
#note, #allowlist, #ann-text { width: 100%; box-sizing: border-box; }
.admin-log { max-height: 520px; overflow-y: auto; }
.dev-box { margin-top: 18px; border-style: dashed; }
.dev-box p { margin: 0 0 8px; }

/* progression en direct, tâche en cours, tuteur redimensionnable */
.task.current { border-color: var(--info); box-shadow: 0 0 0 1px var(--info) inset; }
.badge.cur { background: transparent; color: var(--info); border: 1px solid var(--info); }
.tutor { position: relative; flex: none; max-width: 85vw; }
.tutor-resize { position: absolute; left: -3px; top: 0; bottom: 0; width: 7px; cursor: ew-resize; z-index: 5; }
.tutor-resize:hover, .tutor-resize.drag { background: var(--info); opacity: .45; }
body.resizing { user-select: none; cursor: ew-resize; }